US 11,680,413 B2
Building panel
Roger Ylikangas, Lerberget (SE); Anders Nilsson, Helsingborg (SE); and Karl Quist, Höganäs (SE)
Assigned to VALINGE INNOVATION AB, Viken (SE)
Filed by Välinge Innovation AB, Viken (SE)
Filed on Jan. 9, 2020, as Appl. No. 16/738,737.
Claims priority of application No. 19199234 (EP), filed on Sep. 24, 2019.
Prior Publication US 2021/0087829 A1, Mar. 25, 2021
Int. Cl. B27G 13/14 (2006.01); B27M 3/00 (2006.01); B27M 3/06 (2006.01); E04F 15/02 (2006.01)
CPC E04F 15/02038 (2013.01) [B27G 13/14 (2013.01); B27M 3/0066 (2013.01); B27M 3/06 (2013.01); E04F 2201/0146 (2013.01); E04F 2201/0153 (2013.01); E04F 2201/0161 (2013.01); E04F 2201/023 (2013.01); E04F 2201/043 (2013.01); E04F 2201/044 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for producing mechanical locking systems in a building panel, the building panel comprising
a first mechanical locking system at opposite third and fourth edges, the mechanical locking system comprising
a first pair of horizontal locking surfaces in the third edge and a second pair of horizontal locking surfaces in the fourth edge for horizontal locking of adjacent building panels,
the first pair of horizontal locking surfaces comprising a first upper edge surface of the building panel and a locking element surface provided on a locking element protruding from a locking strip,
the second pair of horizonal locking surfaces comprising a second upper edge surface and the locking groove surface provided by a locking groove configured to receive the locking element of one of the adjacent building panels in response to a folding movement of the adjacent building panel for horizontal locking of the building panels from parting away from each other,
a second mechanical locking system at respective parallel and opposite first and second edges, configured to cooperate for horizontal and vertical locking of two of the adjacent building panels,
a first pair of vertical locking surfaces in the third edge and a second pair of vertical locking surfaces in the fourth edge for vertical locking of adjacent building panels,
the first pair of vertical locking surfaces comprising a first lower lip portion disposed below said first upper edge surface and a tongue groove surface provided by a tongue groove configured to receive a locking tongue of a fourth edge of an adjacent building panel for vertical locking of the adjacent building panel in a direction along the normal of a front surface of the building panel,
the second pair of vertical locking surfaces comprising an upper surface of the locking tongue and a first upper lip portion disposed between a front surface of the building panel and the locking tongue and below the second upper edge surface;
the first lower lip portion being configured to cooperate with the first upper lip portion provided below the second upper edge surface of one of the adjacent building panels for vertical locking of the building panels when said third and fourth edges are assembled in locking position, the method comprising:
displacing the building panel in a third edge feeding direction with its third edge relative to a first tool set and relative to a second tool set;
the first tool set comprising a first and second tool member arranged on a first tool set common rotary shaft; the second tool set comprises a first and second tool member arranged on a second tool set common rotary shaft;
forming with the first tool set, at least part of the locking element and at least part of the locking strip, wherein forming at least part of the locking element comprises forming at least part of the locking element surface, and at least part of locking strip, the first upper edge surface, and the first lower lip portion;
forming with the second tool set, at least a part of the locking element of the building panel and at least part of the tongue groove, wherein forming at least part of the tongue groove comprises forming at least part of the tongue groove surface.